Werner is an expert associate partner in McKinsey's Corporate Finance Practice in New York. He is one of the leaders of the Corporate Performance Center (CPC), a group of consultants that specialize in financial and capital markets analysis and valuation. Rehm focuses his work on the High-Tech, Industrial, and Pharma sectors. Rehm has also extensive experience in leading financial restructuring, chapter 11, and performance improvement engagements. In addition to the client work, Rehm is a leader for McKinsey's corporate finance core skills training and other finance training programs. He has authored several articles on corporate finance topics such as value creation from M&A, capital structure, multiples, and shareholder management and is a member of the editorial board for McKinsey on Finance, McKinsey's quarterly publication on corporate finance topics.